- Free open source alternatives of paid software.
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Free open source alternative app list about topic "ai" :
Macro Mail
Key features Keyboard-first design for fast, mouse-free email management Integrated AI assistance to help draft, summarize, and triage messages Built-in chat for quick conversations without leaving the inbox Task management tools to track follow-ups alongside your email Cross-platform desktop support for macOS, Windows, and Linux Platforms: macOS, Windows, Linux Links Official Website Pricing Free and open source under the AGPL-3.0 license.
Free
Windows
macOS
Linux
Proxed AI
Overview Proxed AI is a free, open-source solution aimed at secure AI API management for iOS applications. It uses Apple’s DeviceCheck to help tie API calls to trusted devices, providing a safer way to mediate interactions between an iOS app and backend AI services. The project also includes a web component, making it useful for developers who want a management layer alongside an iOS client. Pros Free and open source, released under the AGPL-3.0 license. Integrates DeviceCheck, adding a device-verification layer to AI API access. Supports both iOS and Web, allowing for both client and management-side tooling. Focused on API management for AI services, which can help centralize control and monitoring. Cons The AGPL-3.0 license may be too restrictive for fully closed-source or commercial integrations. The directory entry does not link to a source code repository, making community inspection and contribution less immediate. The project is still tagged as “needs-ai-review,” meaning independent verification of its maturity and security posture is pending.
Free
iOS
Skyvern
Key features Leverages large language models and computer vision to automate browser workflows without relying on brittle selectors. Designed to work on any website, reducing the maintenance burden of traditional browser automation scripts. Open-source AI-driven alternative to conventional RPA platforms like UiPath. Built in Python, making it accessible for developers to extend and integrate. Targeted at automating complex, multi-step workflows that span multiple pages and interactions. Platforms: Linux, macOS, Windows Links Official Website Source Code Pricing Free and fully open source under the AGPL-3.0 license.
Free
Windows
macOS
Linux
OpenClaw
Key features Positions itself as an agentic AI assistant focused on taking action, not just responding to queries. Designed as an open-source alternative in the AI assistant space. Aims to function as a chatbot that can execute tasks rather than only answering questions. Cross-platform availability across Windows, macOS, and Linux desktop environments. Platforms: Windows, macOS, Linux. Pricing: Free.
Free
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Inbox Zero
Key features AI-powered email assistant for drafting and automating replies Automated inbox organization to surface what needs attention Tools and workflows designed to help users reach inbox zero Open-source codebase available for self-hosting and customization Web-based access with no local install required for the hosted version Platforms: Web Links Official website Source code Pricing: Freemium. An open-source, self-hostable version is available under the AGPL-3.0 license.
Freemium
Windows
macOS
Linux
FastGPT
Key features Open-source platform for building AI-powered knowledge bases and question-answering systems Uses Retrieval-Augmented Generation (RAG) to combine large language models with custom data sources Supports knowledge ingestion, indexing, and natural-language querying Vector search capabilities for retrieving relevant context from documents Chatbot workflow tools for creating conversational AI agents Flexible integration with various LLM providers Platforms: Linux, macOS, Windows Links Official Website Source Code Pricing: Free — self-hosted, free and open-source under the MIT license.
Free
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macOS
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5ire
Key features Cross-platform desktop AI assistant compatible with local and cloud-based large language models Built-in knowledge base support for grounded, context-aware responses Designed for offline, private AI usage on personal devices Available as a free open-source application under the MIT license Platforms: Windows, macOS, Linux Links Official website Source code Pricing: Free open-source desktop app released under the MIT license.
Free
Windows
macOS
Linux
Open-Notebook
Key features Free and open-source AI-powered research notebook. Privacy-first: runs locally on your own machine. Chat with PDFs, documents, and notes to gather insights. Bring your preferred LLM provider: Ollama, OpenAI-compatible APIs, or other providers. Self-host locally for full control over your data. Platforms: Windows, macOS, Linux Links Official website: https://open-notebook.vercel.app Source code: https://github.com/SiddharthMaheshwari/Open-Notebook Pricing: Free — completely free and open-source; self-host locally and connect to Ollama, OpenAI-compatible APIs, or other providers.
Free
Windows
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Ollama
Key features Run open-source large language models locally on your own machine. Provides a simple API and CLI for interacting with models. Offers a private and free alternative to cloud-based LLM services. Supported on Windows, macOS, and Linux. Platforms: Windows, macOS, Linux Links Official website: https://ollama.com Source code: https://github.com/ollama/ollama Pricing Free. Fully free and open-source under the MIT license; download and run any supported open-source LLM locally without restrictions.
Free
Windows
macOS
Linux
LocalAI
Key features Self-hosted AI runtime covering text, voice, vision, and agent capabilities. OpenAI-compatible API, making it a practical free alternative to the OpenAI API. Runs LLMs and other AI models locally, keeping data on your own hardware and off external services. Works across Windows, macOS, Linux, and Raspberry Pi OS. Fully open source under the MIT license — no usage limits or API fees. Platforms: Windows, macOS, Linux, Raspberry Pi OS Links Official website: https://localai.io Source code: https://github.com/mudler/LocalAI Pricing Free. Completely free and open source under the MIT license; self-host all AI features without usage limits or API fees.
Free
Windows
macOS
Linux
Raspberry Pi OS
llama.cpp
llama.cpp is a free, open-source alternative to OpenAI . Key features Lightweight C++ implementation for running large language models locally. Supports a wide range of hardware backends. Quantized inference for efficient performance. Platforms: Windows, macOS, Linux Links Official website Source code Pricing: Free — fully open-source under the MIT license, free to use, modify, and distribute.
Free
Windows
macOS
Linux
Laminar
Key features Open-source, AI-powered platform designed for engineering LLM products. Comprehensive LLM tracing to monitor and debug application behavior. Evaluation tools for assessing model performance and reliability. Prompt management features to organize and version prompts. Free to self-host with the full feature set, including tracing, evaluation, and prompt management. Available on Linux, macOS, and Windows. Platforms: Linux, macOS, Windows. Links Official website: https://www.lmnr.ai Source code: https://github.com/lmnr-ai/laminar Pricing: Free — the open-source platform is free to self-host with full features, including LLM tracing, evaluation, and prompt management.
Free
Windows
macOS
Linux
dstack
Key features Open-source GPU orchestration tool for distributed AI and ML workloads. Runs workloads seamlessly across cloud providers, Kubernetes clusters, and on-premises infrastructure. Simplifies resource management and scheduling for GPU-intensive tasks. Built for MLOps workflows with automation and infrastructure abstraction. Platforms: Windows, macOS, Linux Links Official website: https://dstack.ai Source code: https://github.com/dstackai/dstack Pricing: Free. Open-source under Apache-2.0; self-hosted with no usage limits.
Free
Windows
macOS
Linux
prompts.chat
prompts.chat The world's largest open-source prompt library for AI Works with ChatGPT, Claude, Gemini, Llama, Mistral, and more formerly known as Awesome ChatGPT Prompts 🌐 Browse Prompts • 📖 Read the Book • 📄 View on GitHub • 🚀 Self-Host 🏆 Featured in Forbes · 🎓 Referenced by Harvard , Columbia · 📄 40+ academic citations · ❤️ Most liked dataset on Hugging Face ⭐ 143k+ GitHub stars · 🏅 GitHub Staff Pick · 🚀 First prompt library (Dec 2022) Loved by AI pioneers: Greg Brockman (OpenAI Co-Founder) · Wojciech Zaremba (OpenAI Co-Founder) · Clement Delangue (Hugging Face CEO) · Thomas Dohmke (Former GitHub CEO) What is this? A curated collection of prompts for AI chat models. Originally created for ChatGPT, these prompts work great with any modern AI assistant. Browse Prompts Data Formats prompts.chat prompts.csv PROMPTS.md Hugging Face Dataset Want to contribute? Add prompts at prompts.chat/prompts/new — they sync here automatically. 📖 The Interactive Book of Prompting Learn prompt engineering with our free, interactive guide — 25+ chapters covering everything from basics to advanced techniques like chain-of-thought reasoning, few-shot learning, and AI agents. Start Reading → (Source: https://github.com/f/prompts.chat/tree/main/src/content/book ) 🎮 Prompting for Kids An interactive, game-based adventure to teach children (ages 8-14) how to communicate with AI through fun puzzles and stories. Start Playing → 🚀 Self-Hosting Deploy your own private prompt library with custom branding, themes, and authentication. Quick Start: npx prompts.chat new my-prompt-library cd my-prompt-library Manual Setup: git clone https://github.com/f/prompts.chat.git cd prompts.chat npm install && npm run setup The setup wizard configures branding, theme, authentication (GitHub/Google/Azure AD), and features. Recommended database: prompts.chat uses PostgreSQL. For a hosted database, we recommend Neon . Sponsored by 📖 Full Self-Hosting Guide • 🐳 Docker Guide 🔌 Integrations CLI npx prompts.chat Claude Code Plugin /plugin marketplace add f/prompts.chat /plugin install
[email protected]
📖 Plugin Documentation MCP Server Use prompts.chat as an MCP server in your AI tools. Remote (recommended): { "mcpServers" : { "prompts.chat" : { "url" : " https://prompts.chat/api/mcp " } } } Local: { "mcpServers" : { "prompts.chat" : { "command" : " npx " , "args" : [ " -y " , " prompts.chat " , " mcp " ] } } } 📖 MCP Documentation 💖 Sponsors Built with Windsurf and Devin Become a Sponsor → 👥 Contributors 📜 License This project is dual-licensed: Source code and site-authored content is licensed under the MIT License , including the interactive book content in src/content/book . Prompt content and data (prompts.csv, PROMPTS.md, user-submitted prompts) is dedicated to the public domain under CC0 1.0 Universal . See LICENSE for details.
Free
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Portkey AI Gateway
Key features Routes API requests to 180+ LLM providers through a unified gateway. Observes request traffic with built-in observability for monitoring and debugging. Secures requests with configurable guardrails. Improves reliability with automatic retries. Supports fallbacks between providers for seamless failover. Platforms: Windows, macOS, Linux Links Official website: https://portkey.ai Source code: https://github.com/Portkey-AI/gateway Pricing Free and open-source under the MIT License.
Free
Windows
macOS
Linux
LobeChat
Key features Open-source, modern AI chat interface for managing, building, and running AI agent teams. Works across multiple LLM providers, letting you switch or combine models in one place. Supports self-hosting for full control over your data and deployment. Extensible via plugins to add custom tools and capabilities. Rich feature set covering chat organization, agent management, and team workflows. Platforms: Windows, macOS, Linux Links Official website: https://lobehub.com/ Source code: https://github.com/lobehub/lobe-chat Pricing Free and fully open-source under Apache-2.0. You can self-host it or use the public demo.
Free
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LiteLLM
Key features Unified Python library and gateway for calling 100+ LLM APIs, including OpenAI, Anthropic, and Azure. Built-in authentication for gateway access control. Load balancing across multiple LLM providers and models. Spend tracking to monitor API usage and costs. Lightweight and open-source, designed as a single interface for LLM API calls. Platforms: Windows, macOS, Linux Links Official website: https://www.litellm.ai Source code: https://github.com/BerriAI/litellm Pricing Free. The core is open-source under the MIT License, offering a complete LLM gateway with unified API, authentication, load balancing, and spend tracking at no cost.
Free
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LibreChat
Key features Unifies multiple AI models — including OpenAI, Anthropic, and others — into a single conversation platform. Supports plugins to extend functionality. Enables sharing conversations and configurations. Self-hosted deployment for full control over your data and setup. Platforms: Windows, macOS, Linux Links Official website Source code repository Pricing Free. Fully free and open-source under the MIT license; self-host your own instance with no usage limits.
Free
Windows
macOS
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Hexabot
Key features Self-hosted platform for building AI agents, chatbots, and automation workflows — a free, open-source alternative to ManyChat. Deploy your chatbots across multiple messaging channels from a single interface. Design automation workflows to handle complex, multi-step user interactions. Maintain full control over your data and infrastructure thanks to self-hosting. Completely free to use with no feature limitations under the GPL-3.0 license. Platforms: Linux Links Official website: https://hexabot.ai Source code: https://github.com/hexabot-ai/hexabot Pricing: Free. Completely free and open-source under the GPL-3.0 license; self-host without limitations.
Free
Linux
Arize Phoenix
Key features Open-source LLM tracing and evaluation platform for AI applications. Monitor, debug, and optimize LLM workflows with built-in observability. Self-hosted deployment for full control over tracing and evaluation data. Supports experimentation with LLM tracing and evaluation using the Phoenix library. Designed for machine-learning and AI observability use cases. Platforms Windows, macOS, Linux Links Official website Source code repository Pricing Free. The free plan includes self-hosted LLM tracing, evaluation, and experimentation with the open-source Phoenix library.
Free
Windows
macOS
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